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5 Possible Reasons Your Dishwasher Has Hot Water Problems

If your dishwasher isn’t getting your dishes clean, there could be a number of reasons for it. It could be anything from not having enough supply of hot water to having a troublesome heating element. Either way, you need to address this issue. Otherwise, your dishes won’t be properly cleaned, and you’ll be left with dirty dishes that can spread sickness!

So, are you dealing with a problematic dishwasher? Here are the possible reasons for its hot water-related problems and how you can fix them:

  1. The Water Heater Is Set Too Low

If the water heater is set too low, the water in the dishwasher won’t get hot enough to clean the dishes properly. Obviously, there’s actually nothing wrong with the dishwasher. It’s just that it has been set a little too low. To fix this, you’ll just need to adjust the water heater’s thermostat to a higher setting. From there, it should now be using much hotter water to get your dishes cleaned!

  1. The Dishwasher’s Inlet Valve Is Defective

The inlet valve is responsible for letting water into the dishwasher. If it’s defective, water won’t be able to flow into the dishwasher, and the dishes won’t get clean. And, if no water can fly, then no hot water can even reach the dishes in the first place. To fix this, you’ll need to either repair or replace the inlet valve.

  1. The Dishwasher’s Heating Element Is Defective

The heating element is responsible for heating the water in the dishwasher. Unfortunately, it is often put under a lot of stress, and this generally translates to inefficiency and, ultimately, failure over time. And, if it’s defective, the water won’t get hot enough to clean the dishes. To fix this, you’ll need to replace the heating element.

  1. The Dishwasher’s Thermostat Is Defective

While your dishwasher’s hot water problem can be caused by a thermostat being set too low, it could also be that the thermostat itself is defective. If it is defective, it won’t be able to tell the dishwasher to heat water up to a specific temperature. To fix this, you can test the thermostat with a multimeter, and if it shows signs of problems, get it repaired or replaced.

  1. There’s a Problem With the Water Supply

If there’s a problem with the water supply, the dishwasher won’t be able to get enough water to clean the dishes properly. And as a result, there’s not enough water being made to properly clean the dishes. To fix this, you’ll need to check the water supply line that is actually allowing enough water to flow into the dishwasher. If it isn’t, get it checked by a plumber and have it repaired or replaced.


As you can see, there are just a whole host of reasons your dishwasher isn’t performing as expected. Hot water is vital in its operations, and without it, a dishwasher cannot do what it is built for: to wash your dishes and clean them effectively. So, if you notice that your dishwasher hasn’t been doing well for a while, check the water. If it isn’t hot, then look around for the possible cause and have it addressed as soon as possible!

Clarkes Appliance Maintenance offers appliance repair services that tackle dryers, washing machines, and so much more. If you need dishwasher repair in Byron, reach out to us right away!

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